Electromagnetic Spectrum and Light Vocab

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Across
  1. 3. a process that occurs when a material absorbs light at one wavelength and then emits light at a longer wavelength; a process in which phosphorescent material converts radiation into visible light
  2. 7. packets of electromagnetic energy; also called a "packet" of light
  3. 9. a description of an object that is hot enough to glow
  4. 10. a false or distorted image
  5. 12. the transfer of electromagnetic waves traveling through matter or across space
  6. 15. a solid material that can emit light by fluorescence
  7. 16. the process in which white light separates into colors
  8. 17. the frequency of the wave is varied and the amplitude remains the same
  9. 18. a process by which light is redirected as it passes through a medium
  10. 19. a description of an object that gives off its own light
  11. 20. a description of a material that that allows most of the light that strikes it to pass through
  12. 22. the emission of electrons from a metal caused by light striking the metal
  13. 24. the rate at which a wave's energy flows through a given unit of area
Down
  1. 1. the amplitude of the wave is varied and the frequency remains the same
  2. 2. transverse waves consisting of electric fields and changing magnetic fields
  3. 4. the full range of frequencies of electromagnetic radiation
  4. 5. light with waves that vibrate only in one plane
  5. 6. light in which waves have the same wavelength and the crests and troughs are lined up
  6. 8. a description of a material that either absorbs or reflects all of the light that strikes it so that nothing can be seen trough it
  7. 11. a copy of an object formed by reflected or refracted light
  8. 13. color-coded pictures that show variations in temperature
  9. 14. a device that generates a beam of coherent light (stands for light amplification by simulated emission of radiation)
  10. 21. three colors that can be combined in varying intensities to create millions of colors (for light= red, blue, green)
  11. 23. a description of a material of a material that scatters light that passes through it